JPH10509803A - Apparatus and method for inspecting the outer wall of a core vessel in the area of a thermal shield surrounding it - Google Patents

Apparatus and method for inspecting the outer wall of a core vessel in the area of a thermal shield surrounding it

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Publication number
JPH10509803A
JPH10509803A JP8518031A JP51803196A JPH10509803A JP H10509803 A JPH10509803 A JP H10509803A JP 8518031 A JP8518031 A JP 8518031A JP 51803196 A JP51803196 A JP 51803196A JP H10509803 A JPH10509803 A JP H10509803A
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Prior art keywords
core vessel
jib
wall
area
heat shield
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Granted
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JP8518031A
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Japanese (ja)
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JP3553080B2 (en
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シユラム、ヘルベルト
ゴツトフリート、ローラント
ハース、エーリツヒ
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Siemens AG
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Siemens AG
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/003—Remote inspection of vessels, e.g. pressure vessels
    • G21C17/007—Inspection of the outer surfaces of vessels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

(57)【要約】 炉心容器（２）の外壁をそれを包囲する熱遮蔽体（４）の範囲において点検するための装置は、本発明に基づいて支持槽の底部（３）に回転可能に支持されその上に炉心容器（２）が設置されるターンテーブル（５０）を有している。炉心容器（２）と並んで支持槽の床部（３）の上に支柱（６０）が設置され、この支柱（６０）にその長手方向に垂直走行できるキャリッジ（６２）が配置されている。このキャリッジ（６２）にジブ（２０）が配置され、このジブ（２２）が炉心容器（２）の外壁と熱遮蔽体（４）との間の範囲に挿入され、その自由端に点検機器を支持している。 (57) [Summary] A device for inspecting the outer wall of a core vessel (2) in the area of a heat shield (4) surrounding it is rotatable on the bottom (3) of a support vessel according to the present invention. It has a turntable (50) which is supported and on which the core vessel (2) is installed. A column (60) is installed on the floor (3) of the support tank alongside the core vessel (2), and a carriage (62) capable of running vertically in the longitudinal direction is arranged on the column (60). A jib (20) is arranged on the carriage (62), and the jib (22) is inserted into a region between the outer wall of the core vessel (2) and the heat shield (4), and an inspection device is provided at its free end. I support it.

Description

【発明の詳細な説明】 炉心容器の外壁をそれを包囲する熱遮蔽体 の範囲で点検するための装置および方法 本発明は、炉心容器の外壁をそれを包囲する熱遮蔽体の範囲で点検するための 装置および方法に関する。 原子力発電設備の安全性を検査するために、通常の運転中に強い負荷をこうむ る安全上重要である設備部品を定期的に検査および点検する必要がある。その設 備部品には炉心組物を収容している炉心容器の外壁に配置されている炉心容器ボ ルトあるいは炉心囲いボルトも数えられる。しかし多くの設備において炉心容器 は熱遮蔽体によって密接して包囲されているので、それらの炉心容器ボルトに接 近するのは難しい。熱遮蔽体と炉心容器の外壁との間には例えば１６〜５０ｍｍ の非常に狭い間隙しか存在せず、外側からの検査は困難である。 本発明の課題は、炉心容器とそれを包囲する熱遮蔽体との間の空間的に狭い範 囲における炉心容器の外壁の点検を可能にする装置を提供することにある。更に 本発明の課題は、そのための炉心容器の外壁を点検する方法を提供することにあ る。即ち本発明の課題は、炉心容器の外壁をそれを包囲する熱遮蔽体の範囲にお いて点検するための装置と方法を提供することにある。 これらの課題はそれぞれ請求項１ないし請求項７に記載の点検によって解決さ れる。 炉心容器の外壁をそれを包囲する熱遮蔽体の範囲において検査するための本発 明に基づく装置は、 ａ）支持槽の底部に回転可能に支持されその上に炉心容器が設置されるターンテ ーブルと、 ｂ）支持槽の底部に設置されその長手方向がターンテーブルの回転軸線に平行に 延びる支柱と、 ｃ）この支柱においてその長手方向に垂直走行できるキャリッジと、 ｄ）このキャリッジに配置され炉心容器の外壁と熱遮蔽体との間の範囲に挿入さ れその自由端に点検機器を支持しているジブと を有している。 本発明の有利な一実施形態において、ジブは支柱の長手軸線に対して横方向に 移動可能にキャリッジに配置されている。 ジブとしてチェーンが使用されると有利である。 本発明の実施形態において、ジブはその自由端にその長手方向に移動可能な点 検機器ホルダを支持している。 特に点検機器ホルダにはビデオカメラが配置されている。 本発明の他の実施形態において、点検機器ホルダにジブの長手軸線に対して横 方向に移動可能に非破壊材料検査用の検査ヘッドが配置されている。 本発明に基づく炉心容器の外壁をそれを包囲する熱遮蔽体の範囲で点検する方 法は次の工程を含んでいる。即ち ａ）支持槽の底部に回転可能なターンテーブルが支持される。 ｂ）ターンテーブル上に炉心容器が設置される。 ｃ）支持槽の底部に炉心容器と並んでその長手方向がターンテーブルの回転軸線 に対して平行に延びる支柱が置かれる。 ｄ）この支柱においてその長手方向に垂直走行できるキャリッジによって、炉心 容器の外壁と熱遮蔽体との間の範囲に、キャリッジに配置されその自由端に点検 機器を支持しているジブが挿入される。 以下図面に示した実施例を参照して本発明を詳細に説明する。 図１は炉心容器と並んで配置された本発明に基づく装置の概略図、 図２は熱遮蔽体と炉心容器との間の中間室に突出した本発明に基づく装置のジ ブの拡大切断図、および 図３にはジブとしてチェーンが設けられている本発明に基づく装置別の有利な 実施例が示されている。 図１において炉心容器２は支持槽の底部３にあるターンテーブル５０上に設置 置されている。炉心容器２はその外壁の一部領域が熱遮蔽体４で包囲されている 。炉心容器２と熱遮蔽体４との間に狭い間隙５があり、、この間隙５は具体的な 実施形態に応じて１６ｍｍ〜５０ｍｍに達している。 ターンテーブル５０は支持槽の底部３の上に回転可能に支持され、炉心容器２ 全体をその中心軸線を中心として回転できるように回転駆動装置５２に連結され ている。 炉心容器２に並んで支持槽の底部３の上に支柱６０が固定的に設置され、この 支柱６０はその長手軸線の方向に垂直走行可能なキャリッジ６２を支持している 。 キャリッジ６２にはジブ２０が配置され、その自由端は熱遮蔽体４と炉心容器 ２との間にある中間室あるいは間隙５の中に挿入される。狭い空間状態において もジブ２０を間隙５の由に挿入できるようにするために、ジブ２０はその長手軸 線に対して平行に走行可能にキャリッジ６２に支持されている。有利な実施形態 においては、ジブ２０として支柱６０の長手軸線に対して平行に繰り出し可能な 入れ子式ジブが使用されており、この入れ子式ジブにより間隙５内の深い検査位 置にも到達できる。ジブ２０は更に、隙間５内において正確に位置決めできるよ うにするために、支柱６０の長手軸線に対して横方向に炉心容器２の円周方向に 対して垂直に移動可能に、即ち半径方向に変位可能にキャリッジ６２に支持され ている。このジブ２０の半径方向の変位運動は、一方ではキャリッジ６２が動く 際に障害物を通過できるようにするため、および他方ではこの障害物の通過後に 間隙５に位置決めできるようにするために必要である。このような障害物は例え ば炉心容器２の上縁６におけるその外壁より突出したフランジによってあるいは 炉心容器２の外壁面より突出した出口接続短管７によって形成されている。 ジブ２０の自由端に点検のために必要な点検機器例えばビデオカメラおよび／ 又は超音波検査ヘッドに対する点検機器ホルダ２２が配置されている。 図２においてジブ２０はその自由端が熱遮蔽体４と炉心容器２との間の環状間 隙５の中に挿入されている。ジブ２０はその自由端にその長手方向に対して平行 に配置されたスライドガイドを有し、スライダとして形成された点検機器ホルダ ２２はそのガイド上を点検機器ホルダ２２が垂直方向に移動するように案内され ている。点検機器ホルダ２２は図示の例においてビデオカメラ２４並びに非破壊 材料検査用の検査ヘッド２６例えば超音波検査ヘッドを有している。検査ヘッド ２６は点検機器ホルダ２２にジブ２０の長手方向に対して垂直で炉心容器２の円 周方向に対して垂直に延びる回転軸線を中心として回転可能に支持されている。 更に検査ヘッド２６は点検機器ホルダ２２にこの回転軸線の方向に移動可能に配 置されている。 ビデオカメラ２４によって点検機器ホルダ２２は炉心容器２における検査すべ きボルト４２に正確に合わせられる。このためにボルト４２は監視モニタにおい て所定の画像位置に正確に進められる。ビデオカメラ２４と検査ヘッド２６との 一定間隔によって検査ヘッド２６は正確にボルト４２の上の位置に進められ、例 えば図において符号４４が付されているボルト４２の頭部の上に正確に置かれる 。 表面形状をボルト４２の頭部形状に合わされた、検査ヘッド２６をボルト頭部 の方位に対して正しく合わせることができるようにするために、検査ヘッド２６ は回転可能にする必要がある。この実施例においてボルト４２は、固定ピン４４ 付きの溝付きボルトであり、検査ヘッド２６の連結面にある溝２８をこの固定ピ ンに合わせる必要がある。 図３には本発明の他の実施例が示されている。この場合ジブとして、キャリッ ジ６２に配置されている案内ローラ３２を介して案内されているチェーン３０が 使用されている。チェーン３０を案内するためにキャリッジ６２にチェーンガイ ド３４が設けられている。このチェーンガイド３４は正確に位置決めするために 支柱６０の長手方向に対して横方向に移動できる。有利な実施形態においてチェ ーン３０の一端に図２に詳細に示されているように点検機器ホルダに対するスラ イドガイドが配置されている。 炉心容器２が熱遮蔽体と炉心容器との間の間隙に横方向からも到達できるよう に互いに空間的に隔てられた複数の環状セグメントから成っている熱遮蔽体によ って包囲されている場合には、キャリッジに支柱の長手軸線に対して横方向に延 びるジブ例えば入れ子式ジブが配置される。このジブは炉心容器の壁の曲率に応 じて湾曲され、円周方向に移動可能にキャリッジに支持されている。DETAILED DESCRIPTION OF THE INVENTION                  Thermal shield surrounding the outer wall of the core vessel                  And method for checking in the field   The present invention is directed to inspecting the outer wall of a core vessel in the area of a thermal shield surrounding it. Apparatus and method.   Heavy loads during normal operation to check the safety of nuclear power plants It is necessary to regularly inspect and inspect equipment components that are important for safety. The setting The equipment includes a core vessel that is located on the outer wall of the core vessel that contains the core assembly. Bolts or core enclosure bolts are also counted. However, in many facilities core vessels Are closely surrounded by heat shields, so that they It's hard to get close. Between the heat shield and the outer wall of the core vessel, for example, 16 to 50 mm There is only a very narrow gap, and inspection from the outside is difficult.   The object of the present invention is to provide a spatially narrow space between the core vessel and the surrounding heat shield. It is an object of the present invention to provide a device which enables inspection of an outer wall of a core vessel in an enclosure. Further An object of the present invention is to provide a method for inspecting the outer wall of a core vessel for that purpose. You. That is, an object of the present invention is to provide an outer wall of a core vessel within a range of a heat shield surrounding the outer wall. And to provide a device and a method for checking.   These problems are solved by the inspections according to claims 1 to 7, respectively. It is.   The present invention for inspecting the outer wall of a core vessel in the area of the thermal shield surrounding it The device based on Ming a) A turntable which is rotatably supported at the bottom of the support tank and on which a core vessel is installed. Table and b) Installed at the bottom of the support tank, the longitudinal direction of which is parallel to the rotation axis of the turntable. An extending column, c) a carriage capable of running vertically on the column in its longitudinal direction; d) inserted into the area between the outer wall of the core vessel and the heat shield, which is disposed on the carriage; The jib supporting the inspection equipment at its free end have.   In one advantageous embodiment of the invention, the jib is transverse to the longitudinal axis of the strut. It is movably arranged on the carriage.   Advantageously, a chain is used as the jib.   In an embodiment of the invention, the jib has at its free end a point movable in its longitudinal direction. Supports the inspection device holder.   In particular, a video camera is arranged in the inspection equipment holder.   In another embodiment of the invention, the inspection equipment holder is transverse to the longitudinal axis of the jib. An inspection head for non-destructive material inspection is movably disposed in the direction.   Inspecting the outer wall of a core vessel according to the invention in the area of the thermal shield surrounding it The method includes the following steps. That is a) A rotatable turntable is supported on the bottom of the support tank. b) A core vessel is placed on the turntable. c) At the bottom of the support tank, along with the core vessel, the longitudinal direction is the rotation axis of the turntable. A column extending parallel to is placed. d) the core, by means of a carriage which can travel vertically in its longitudinal direction on this support, Located on the carriage, in the area between the outer wall of the container and the heat shield, inspected at its free end The jib supporting the equipment is inserted.   Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.   FIG. 1 is a schematic view of an apparatus according to the present invention arranged alongside a core vessel,   FIG. 2 shows the device according to the invention projecting into the intermediate chamber between the heat shield and the core vessel. Enlarged cutaway view of the   FIG. 3 shows another advantageous arrangement according to the invention in which a chain is provided as a jib. An example is shown.   In FIG. 1, the core vessel 2 is set on a turntable 50 at the bottom 3 of the support tank. Is placed. The core vessel 2 has a part of the outer wall surrounded by the heat shield 4. . There is a narrow gap 5 between the core vessel 2 and the heat shield 4, and this gap 5 It reaches 16 mm to 50 mm depending on the embodiment.   The turntable 50 is rotatably supported on the bottom 3 of the support tank, and the core vessel 2 The whole is connected to a rotary drive 52 so as to be rotatable about its central axis. ing.   A column 60 is fixedly installed on the bottom 3 of the support tank alongside the core vessel 2. The strut 60 supports a carriage 62 that can travel vertically in the direction of its longitudinal axis. .   The jib 20 is arranged on the carriage 62, and its free ends are connected to the heat shield 4 and the core vessel. 2 is inserted into an intermediate chamber or gap 5 between them. In narrow space conditions Also, the jib 20 has its longitudinal axis so that the jib 20 can be inserted through the gap 5. It is supported by the carriage 62 so as to be able to run parallel to the line. Advantageous embodiments In the above, the jib 20 can be extended in parallel with the longitudinal axis of the column 60. A telescoping jib is used, which provides a deep inspection position in the gap 5. Can also be reached. The jib 20 can also be positioned accurately in the gap 5. In order to avoid this, in the circumferential direction of the core vessel 2 in a direction transverse to the longitudinal axis of the column 60, The carriage 62 is supported by the carriage 62 so as to be movable vertically, that is, displaceable in the radial direction. ing. This radial displacement movement of the jib 20 on the one hand causes the carriage 62 to move. On the other hand, and on the other hand after the obstacle This is necessary so that positioning in the gap 5 is possible. Such obstacles By means of a flange projecting from its outer wall at the upper edge 6 of the core vessel 2 or The outlet connection short pipe 7 protrudes from the outer wall surface of the core vessel 2.   Inspection equipment necessary for inspection at the free end of the jib 20, such as a video camera and / or Alternatively, an inspection equipment holder 22 for the ultrasonic inspection head is arranged.   In FIG. 2, the free end of the jib 20 is located between the heat shield 4 and the core vessel 2 in an annular shape. It is inserted into the gap 5. The jib 20 is parallel to its free end with respect to its longitudinal direction Inspection equipment holder formed as a slider, having a slide guide arranged at 22 is guided on the guide so that the inspection equipment holder 22 moves vertically. ing. Inspection equipment holder 22 includes video camera 24 and non-destructive in the illustrated example. It has an inspection head 26 for material inspection, for example, an ultrasonic inspection head. Inspection head Numeral 26 denotes a circle of the core vessel 2 perpendicular to the longitudinal direction of the jib 20 on the inspection equipment holder 22. It is supported rotatably about a rotation axis extending perpendicularly to the circumferential direction. Further, the inspection head 26 is disposed on the inspection equipment holder 22 so as to be movable in the direction of the rotation axis. Is placed.   The inspection equipment holder 22 should be inspected by the video camera 24 in the core vessel 2. To the bolt 42 accurately. For this reason, the bolt 42 is To a predetermined image position. Between the video camera 24 and the inspection head 26 At regular intervals, the inspection head 26 is advanced exactly to the position above the bolt 42, e.g. For example, it is placed exactly on the head of the bolt 42, which is designated 44 in the figure. .   The inspection head 26 whose surface shape matches the head shape of the bolt 42 is used as the bolt head. Inspection head 26 so that it can be correctly aligned with the orientation of Need to be rotatable. In this embodiment, the bolt 42 is A grooved bolt on the connecting surface of the inspection head 26 is provided with this fixing pin. Need to be adjusted.   FIG. 3 shows another embodiment of the present invention. In this case, as a jib, carry The chain 30 guided through the guide roller 32 disposed on the It is used. A chain guide is attached to the carriage 62 to guide the chain 30. The door 34 is provided. This chain guide 34 is used for accurate positioning. The column 60 can be moved in the lateral direction with respect to the longitudinal direction. In an advantageous embodiment, At one end of the screen 30, a slide to the inspection equipment holder as shown in detail in FIG. An id guide is arranged.   The core vessel 2 can reach the gap between the heat shield and the core vessel from the lateral direction. A heat shield consisting of a plurality of annular segments spatially separated from each other. , The carriage extends transversely to the longitudinal axis of the column. A moving jib, such as a telescoping jib, is arranged. This jib responds to the curvature of the core vessel wall. And is supported by the carriage movably in the circumferential direction.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 ハース、エーリツヒ ドイツ連邦共和国 デー−90607 リユツ ケルスドルフ フリーダーシユタイク 30────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventors Haas, Erich             Germany Day-90607 Liyutsu             Kelsdorf Frieder Shuitek 30

Claims (1)

【特許請求の範囲】 １．炉心容器（２）の外壁をそれを包囲する熱遮蔽体（４）の範囲で点検するた めの装置において、 ａ）支持槽の底部（３）に回転可能に支持されその上に炉心容器（２）が設置さ れるターンテーブル（５０）と、 ｂ）支持槽の底部（３）の上に設置されその長手方向がターンテーブル（５０） の回転軸線に対して平行に延びる支柱（６０）と、 ｃ）この支柱（６０）においてその長手方向に垂直走行できるキャリッジ（６２ ）と、 ｄ）このキャリッジ（６２）に配置され炉心容器（２）の外壁と熱遮蔽体（４） との間の範囲に挿入されその自由端に点検機器を支持しているジブ（２０）と を備えた炉心容器の外壁をそれを包囲する熱遮蔽体の範囲で点検するための装置 。 ２．ジブ（２０）が支柱（６０）の長手軸線に対して横方向に移動可能にキャリ ッジ（６２）に配置されていることを特徴とする請求項１記載の装置。 ３．ジブとしてチェーン（３０）が設けられていることを特徴とする請求項１又 は２記載の装置。 ４．ジブ（２０、３０）がその自由端にその長手方向に走行可能な点検機器ホル ダ（２２）を支持していることを特徴とする請求項１ないし３のいずれか１つに 記載の装置。 ５．点検機器ホルダ（２２）にビデオカメラ（２４）が配置されていることを特 徴とする請求項４記載の装置。 ６．点検機器ホルダ（２２）にジブ（２０）の長手軸線に対して横方向に移動可 能に非破壊材料検査用の検査ヘッド（２６）が配置されていることを特徴とする 請求項４又は５記載の装置。 ７．炉心容器（２）の外壁をそれを包囲する熱遮蔽体（４）の範囲で点検する方 法において、 ａ）支持槽の底部（３）に回転可能なターンテーブル（５０）が支持され、 ｂ）ターンテーブル（５０）上に炉心容器（２）が設置され、 ｃ）支持槽の底部（３）の上に炉心容器（２）と並んでその長手方向がターンテ ーブル（５０）の回転軸線に対して平行に延びる支柱（６０）が設置され、 ｄ）この支柱（６０）においてその長手方向に垂直走行できるキャリッジ（６２ ）によって、炉心容器（２）の外壁と熱遮蔽体（４）との間の範囲に、キャリッ ジ（６２）に配置されその自由端に点検機器を支持しているジブ（２０）が挿入 される ことを特徴とする炉心容器の外壁をそれを包囲する熱遮蔽体の範囲において点検 するための方法。[Claims] 1. The outer wall of the core vessel (2) is inspected in the area of the heat shield (4) surrounding it. Device, a) The core vessel (2) is rotatably supported on the bottom (3) of the support tank and is mounted thereon. Turntable (50), b) The turntable (50) is installed on the bottom (3) of the support tank and has a longitudinal direction. A column (60) extending parallel to the axis of rotation of c) A carriage (62) which can run vertically on the support (60) in the longitudinal direction. )When, d) The outer wall of the core vessel (2) and the heat shield (4) disposed on the carriage (62). A jib (20) inserted into the area between and supporting the inspection equipment at its free end; For inspecting the outer wall of a core vessel provided with a heat shield in the area of the surrounding thermal shield . 2. Carry so that the jib (20) can move laterally with respect to the longitudinal axis of the column (60). 2. The device according to claim 1, wherein the device is arranged on a carriage. 3. A chain (30) is provided as a jib. Is the device described in 2. 4. A jib (20, 30) is provided at its free end with an inspection equipment housing capable of running in its longitudinal direction. 4. The device as claimed in claim 1, wherein said support member supports a damper. The described device. 5. Note that the video camera (24) is arranged in the inspection equipment holder (22). 5. The device according to claim 4, wherein 6. Inspection equipment holder (22) can be moved transversely to the longitudinal axis of jib (20) In addition, an inspection head (26) for non-destructive material inspection is arranged. An apparatus according to claim 4 or claim 5. 7. Inspection of the outer wall of the core vessel (2) in the area of the heat shield (4) surrounding it In the law, a) A rotatable turntable (50) is supported on the bottom (3) of the support tank, b) A core vessel (2) is set on a turntable (50), c) On the bottom (3) of the support tank, along with the core vessel (2), the longitudinal direction is A support (60) extending parallel to the axis of rotation of the cable (50) is installed, d) A carriage (62) that can run vertically on the support (60) in the longitudinal direction. ), The area between the outer wall of the core vessel (2) and the heat shield (4) is A jib (20) inserted in the free end of the jib (62) and supporting the inspection equipment is inserted. Be done Inspecting the outer wall of the core vessel in the area of the heat shield surrounding it Way to do.
JP51803196A 1994-11-30 1995-11-27 Apparatus and method for inspecting the outer wall of a core vessel in the area of a thermal shield surrounding it Expired - Fee Related JP3553080B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4442620.8 1994-11-30
DE4442620 1994-11-30
PCT/DE1995/001666 WO1996017357A1 (en) 1994-11-30 1995-11-27 Process and device for inspecting the outer casing of a nuclear container in the area of a thermal shield enclosing it

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JPH10509803A true JPH10509803A (en) 1998-09-22
JP3553080B2 JP3553080B2 (en) 2004-08-11

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US (1) US5844955A (en)
EP (1) EP0795180B1 (en)
JP (1) JP3553080B2 (en)
DE (1) DE59503734D1 (en)
ES (1) ES2122719T3 (en)
WO (1) WO1996017357A1 (en)

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US5844955A (en) 1998-12-01
ES2122719T3 (en) 1998-12-16
EP0795180A1 (en) 1997-09-17
DE59503734D1 (en) 1998-10-29
JP3553080B2 (en) 2004-08-11
WO1996017357A1 (en) 1996-06-06
EP0795180B1 (en) 1998-09-23

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